QQ客服 官方微博 反馈留言

	Fractionation, distribution and transport of mercury in rivers and tributaries around wanshan hg mining district, guizhou province, southwestern china: part 2-methylmercury
	Zhang, Hua1,2; Feng, Xinbin1; Larssen, Thorjorn3,4; Shang, Lihai1; Vogt, Rolf D.4; Lin, Yan4; Li, Ping1; Zhang, Hui1,2
刊名	Applied geochemistry
	2010-05-01
卷号	25期号:5页码:642-649
ISSN号	0883-2927
DOI	10.1016/j.apgeochem.2010.01.005
通讯作者	Feng, xinbin(fengxinbin@vip.skleg.cn)
英文摘要	Water samples were collected during normal flow (2007) and during a drought period (2008) from five rivers and tributaries draining the wanshan hg mining district, guizhou, china. unfiltered methylmercury (mehg) as well as particulate and dissolved fractions of mehg (p-mehg, d-mehg) were measured to assess the spatial and temporal variation of mehg contamination in the local river system. most locations (about 80%) displayed higher mehg concentrations during drought period than during normal discharge conditions. concentrations of mehg during the drought period ranged from <0.035 to 11 ng l(-1) (geometric mean: 0.43), while during normal flow the concentrations ranged from <0.035 to only 3.4 ng l(-1) (geometric mean: 0.21). concentrations of mehg were positively correlated with total hg (thg) concentrations (r(2) = 0.20-0.58, p < 0.001) and inversely related to distance from the calcines, during both sampling periods (r(2) = 0.34 and 0.23, p < 0.001, for low and normal flow, respectively) indicating that calcines may be important sources of mehg to the downstream environment. approximately 39% of mehg was bound to particulates and the rest was transported in the dissolved phase along stretches of the entire river, which was different from thg, as this was mainly transported bound to particulates (commonly more than 80%). (c) 2010 elsevier ltd. all rights reserved.
WOS关键词	SURFACE WATERS ; METHYL MERCURY ; MINE WASTES ; FRESH-WATERS ; CARSON RIVER ; METHYLMERCURY ; SPECIATION ; AREAS ; SPECTROSCOPY ; ETHYLATION
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000278674900004
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2411961
专题	中国科学院大学
通讯作者	Feng, Xinbin
作者单位	1.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Norwegian Inst Water Res, N-0169 Oslo, Norway 4.Univ Oslo, Dept Chem, N-0315 Oslo, Norway
推荐引用方式 GB/T 7714	Zhang, Hua,Feng, Xinbin,Larssen, Thorjorn,et al. Fractionation, distribution and transport of mercury in rivers and tributaries around wanshan hg mining district, guizhou province, southwestern china: part 2-methylmercury[J]. Applied geochemistry,2010,25(5):642-649.
APA	Zhang, Hua.,Feng, Xinbin.,Larssen, Thorjorn.,Shang, Lihai.,Vogt, Rolf D..,...&Zhang, Hui.(2010).Fractionation, distribution and transport of mercury in rivers and tributaries around wanshan hg mining district, guizhou province, southwestern china: part 2-methylmercury.Applied geochemistry,25(5),642-649.
MLA	Zhang, Hua,et al."Fractionation, distribution and transport of mercury in rivers and tributaries around wanshan hg mining district, guizhou province, southwestern china: part 2-methylmercury".Applied geochemistry 25.5(2010):642-649.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。